Question

How to use Uint8Array.from() to create Uint8Array (byte) array type in JavaScript

Answer 1

var arr = Uint8Array.from("1234");  // Uint8Array [ 1, 2, 3, 4 ]     

for (var i = 0; i < arr.length; i++)
    document.write(arr[i] + "<br />");

/*
run:

1
2
3
4

*/

 

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Answer 2

var st = new Set([1, 2, 3, 4]);

var arr = Uint8Array.from(st);  // Uint8Array [ 1, 2, 3, 4 ]     

for (var i = 0; i < arr.length; i++)
    document.write(arr[i] + "<br />");

/*
run:

1
2
3
4

*/

 

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